What is a central idea of "Mohandas Ghandi: Truth in Action"?
A. Ghandi thought South Africans should let Indians sit anywhere on trains.
B. Ghandi learned to live a life of nonviolence from his father's friend.
C. Ghandi led his people to independence and self-sufficiency without using violence.
D. Ghandi believed the Untouchables deserved more rights than other Indians.